Unhappy with the Tarzan pictures being made in Hollywood, author Edgar Rice Burroughs, creator of the "Lord of the Jungle," set up his own production company, Burroughs-Tarzan Enterprises. The only Tarzan opus to emerge from this short-lived enterprise was the 12-chapter serial (and simultaneously released feature-length version) The New Adventures of Tarzan, filmed on location in Guatemala with Olympics decathlon champion Herman Brix (aka Bruce Bennett) in the lead. The serpentine plots finds Tarzan (well-educated and articulate for a change) joining an archeological expedition to South America in search of a rare, jewel-encrusted Mayan idol. The villain of the piece is the mercenary Raglan, who will stop at nothing to get his hands on the ancient artifact. There's no Jane in this one, but Tarzan does have a leading lady in the shapely form of Ula Vale (Ula Holt). Very cheaply produced, with particularly bad sound quality (there is in fact an opening title apologizing for the poor sound), The New Adventures of Tarzan nonetheless has a great deal of energy, and Herman Brix/Bruce Bennett is physically quite impressive as Tarzan. Years after its original release, New Adventures of Tarzan was reissued with a newly recorded soundtrack, featuring an entirely different cast. Incidentally, though Don Castello is billed as Raglan, Castello fell ill just before shooting started and was replaced by Edgar Rice Burroughs' business partner Ashton Dearholt.